修复：提交文件未创建新分支时为空判断

app/services/gitea/repository/entries/create_service.rb

@@ -56,7 +56,7 @@ class Gitea::Repository::Entries::CreateService < Gitea::ClientService
     when 403 then error("你没有权限操作!")
     when 404 then error("你操作的链接不存在!")
     when 422 
-      if @body[:new_branch].include?('/') || @body[:new_branch].include?('\'') || @body[:new_branch].include?('^') || @body[:new_branch].include?('*')
+      if @body[:new_branch].present? && (@body[:new_branch].include?('/') || @body[:new_branch].include?('\'') || @body[:new_branch].include?('^') || @body[:new_branch].include?('*'))
         error("不合法的分支名称!")
       else
         error("#{filepath}文件已存在，不能重复创建!")